21. Coffee berries
22. Coffee percolator
23. Grains of starch
24. A cupful of rice before and after boiling
25. Insulated wall of a refrigerator
26. Fireless cooker, having excelsior packing
27. Fireless cooker, with stone disks
28. Electric fireless cooker
29. Gas range, having fireless cooker attachment, insulated oven and hoods
30. Method of folding filter paper